The Warlock of Ys is a powerful sorcerer and enemy to Green Lantern. He exists in an alternate dimension known as the Other Side of the World, which has no passage of time and no other inhabitants. His attempts to enter our world and wreak havoc have been thwarted repeatedly. Warlock of Ys was created by Gardner Fox and Gil Kane, first appearing in Green Lantern (Volume 2) #42. (1966)

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